JP2701599B2 - Frame for electromagnet device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame for an electromagnetic device such as an air circuit breaker.

[0002]

2. Description of the Related Art A conventional frame for an electromagnet device is shown in FIGS.
Referring to FIG. 3 is an exploded perspective view showing a state before both frame halves are assembled, FIG. 4 is a perspective view showing a state where both frame halves are assembled, FIG. 5 is a bottom view of FIG.
FIG. 6 is a view showing a swaged state, and is a line VI-VI in FIG.
FIG. 7 is a partial side view of FIG. 6 viewed from below. In the drawing, reference numeral 1 denotes a frame half which is formed into a downwardly U-shaped trihedron by an intermediate surface 1A and opposing surfaces 1B and 1B connected to both sides of the intermediate surface 1A. It has a hole 2 to be penetrated. 3 is the middle plane 3
A is a frame half composed of an upward U-shaped trihedron composed of A and opposing surfaces 3B, 3B connected to both sides thereof.
A has a hole 4 for fixing a fixed iron core (not shown). Reference numeral 5 denotes each protruding edge 1b of the facing surface 1B of the frame half 1,
1b and convex portions provided on both side edges 1a, 1a of the intermediate surface 1A, and caulking grooves 5a, 5a in the thickness direction on both left and right sides.
Respectively. 6 is the facing surface 3 of the frame half 3
B, and both side edges 3a of the intermediate surface 3A.
3a, which have caulking grooves 6a in the thickness direction on both left and right sides, respectively.

Next, an assembling procedure will be described. First, from the disassembled state shown in FIG. 3, the frame half 1 is inserted into and engaged with the frame half 3 in the direction of arrow 7 to form the hexahedron shown in FIG. Then bite into the caulking wall S ₁ is crimped to the arrow P ₁ direction shown in FIG. 4 in one of the caulking groove 5a of the projecting portion 5 as shown in FIGS. By digging the caulking wall on the other caulking groove 5a of the projecting portion 5 similarly by the arrow P ₂ direction of the caulking, the direction of arrow 8 of spread of the opposite surface 3B of the frame half 3 can be prevented. Similarly, arrows P ₃ , P
By caulking in _four directions, the opposing surface 3B of the frame half 3 can be prevented from spreading in the direction of arrow 9, and by caulking in the directions of arrows P5 and P6, arrow 1 on the opposing surface 1B of the frame half 1 can be prevented.
Spreading in the 0 direction can be prevented, and further, by caulking in the directions of arrows P ₇ and P ₈ , the arrow 1 on the opposing surface 1B of the frame half 1
Spreading in one direction can be prevented. Next, the arrow P shown in FIG.
Crimping cutting into one of the caulking groove 6a of the recess 6 as shown crimping meat S ₂ in FIG. 6 and FIG. 7 Te in _nine directions. Similarly was wedged crimping meat other caulking grooves 6a of the recess 6 by the arrow P ₁₀ direction of caulking, the left and right sides of the caulking groove 6a of the recess 6 by caulking the arrow P _11, P ₁₂ direction, each crimping meat 6a And the arrow P ₁₃ ,
Each By wedged caulking meat P _14, P _15, P ₁₆ direction of the caulking groove 5a of the left and right sides of the biconvex portion 5 by crimping, can be prevented loss of the arrow 12 direction of the frame halves 1. In this way, the two frame halves 1 and 3 can be assembled by the caulking operation.

[0004]

A frame for a conventional electromagnetic device, such as above THE INVENTION The object will to solve the above-downward crimping of P ₁ to P _4, right crimping upward crimping, P _9, P ₁₀ of P ₅ to P ₈ Work, P ₁₁ , P ₁₂ left caulking work,
Caulking work in 16 directions in six directions, P ₁₃ and P ₁₄ , and P ₁₅ , P ₁₆ is required. was there.

The present invention has been made to solve such a problem, and an object of the present invention is to obtain a frame for an electromagnet device which can be assembled by four bending operations, thereby eliminating the need for caulking operation and improving the assembly workability. do.

[0006]

SUMMARY OF THE INVENTION A frame for an electromagnet device according to the present invention includes two frame halves each having a U-shaped trihedron, and each protruding edge of a facing surface of one of the frame halves. And the two side edges of the intermediate surface of the other half of the frame are fitted to the unevenness portion for preventing spread, thereby forming a hexahedron, and two recesses are formed at both intermediate edges of the opposite surface of the opposite surface of the one half of the frame. And a concave portion for bending the convex portion is provided at both intermediate edges of the opposite surface of the other half of the frame, and the convex portion is bent to the concave portion at four places of the hexahedron. By doing so, the two frame halves are assembled.

[0007]

According to the present invention, the two frame halves are assembled by fitting the two frame halves with the unevenness preventing portions to form a hexahedron, and then the four projections are bent into the recesses to assemble the two frame halves. Therefore, caulking work becomes unnecessary.

[0008]

An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an exploded perspective view showing a state before assembling both frame halves, and FIG. 2 is a perspective view showing a state after assembling both frame halves. The description is omitted here. In the figure, 13 is both side edges 1 of the intermediate surface 1A of the frame half 1
a, 1a and each of the protruding edges 1b, 1b of the opposing surface 1B are provided with anti-spreading protrusions, respectively. 3b, 3b, anti-spread recesses, 15
Are convex portions formed on two side edges 3c, 3c of the opposing surface 3B of the frame half 3 and formed by two recesses 15a, 15a, respectively, and 16 are both side edges 1c of the opposing surface 1B of the frame half 1. , 1c, respectively, and the concave portions where the convex portions 15 are bent.

The two frame halves 1 and 3 shown in FIG. 1 are fitted to the unevenness preventing portions 13 and 14 for preventing spread.
When the hexahedron is formed as shown in FIG. 7, the opposing surface 1B of the frame half 1 expands in the direction of arrow 17 and the opposing surface 3B of the frame half 3 expands in the direction of arrow 18 by the uneven portions 13, 1.
4 is prevented. Then, as shown in FIG. 2, when each convex portion 15 is bent over the concave portion 16, the respective opposing surfaces 1 B, 3 B of the two frame halves 1, 3 are opposed to both side edges 1 c,
3c form a strong hexahedron.

If the intermediate surface side of each projection 15 is formed as a slope 15b having an angle θ as in the above-described embodiment, the slope 15b pushes the recess 16 at the time of bending.
B and 3B mutually receive a force in the direction of arrow 19, and both frame halves 1 and 3 are tightened.

[0011]

As described above, according to the present invention, since the assembling is performed by the four bending operations, the effect that the caulking operation becomes unnecessary and the assembling workability is improved can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an assembled state of FIG. 1;

FIG. 3 is an exploded perspective view showing a conventional one.

FIG. 4 is a perspective view showing an assembled state of FIG. 3;

FIG. 5 is a bottom view of FIG. 4;

FIG. 6 is a partial plan view taken along line VI-VI in FIG. 4;

FIG. 7 is a partial side view of FIG. 6 as viewed from below.

[Explanation of symbols]

 1,3 Frame half 1A, 3A Intermediate surface of frame half 1B, 3B Opposing surface of frame half 1a, 3a Both side edges of intermediate surface 1b, 3b Protruding edge 1c, 3c Opposite side edge of opposite surface 13 Spread Preventing Protrusion 14 Spread Preventing Recess 15 Convex 15a Recess 16 Conc

Claims (1)

(57) [Claims] 1. Two frame halves each comprising a U-shaped trihedron are provided, each protruding edge of an opposing surface of one of the frame halves, and both side edges of an intermediate surface of the other frame half. Into a hexahedron by fitting the uneven portions for preventing spread, and providing a convex portion formed by two concave portions on both side middle edges of the opposing surface of one frame half, and forming the other frame half. A concave portion for bending the convex portion is provided on both side intermediate edges of the opposing surface, and the two frame halves are assembled by bending the convex portion to the concave portion at four locations of a hexahedron. Characteristic frame for electromagnet device.